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There can be number of reasons for this. The valve to H/W tank is possibly not totally open, the tank could be 'sludged ' up if you have not cleaned it for a while. H/W tanks should be cleaned every 3-4 years.

You first turn OFF the power to tank, now remove the anode rod, ( a large bolt head on top of the tank, attached to what may remain of your rod) . then attach a hose pipe to the bottom fitting, lead it outside or to any drain, turn on the valve by it, turn OFF your inlet valve and open the relief valve so air can enter the H/W tank. Let the whole tank empty -takes about 30 -40 minutes. Next, when empty turn ON the inlet valve and let cold water run through the tank and out the hose, now you will see the sludge coming out. Let this run 5-7 minutes or until water is coming through clean. Now you are done . Let it fill, and fit new anode rod as it fills ( weight of the water helps) then turn on power when full.

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Q: Why is there Low hot water pressure to shower and sinks throughout house cold water pressure is good?
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You have lost hot water pressure in your shower but not in your sinks what would cause this?

A dirty or clogged screen can cause the low water presser remove shower head and clean. If not it could be calcium deposits built up on shower head if so soak shower head in a cleaning solution for several hours if that dose not work buy a new shower head. (note some shower heads have a low flow re-stricter in some cases you can remove this and get more water pressure)


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